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zzip.h
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/* * Author: * Guido Draheim <guidod@gmx.de> * Tomi Ollila <Tomi.Ollila@iki.fi> * * Copyright (c) 1999,2000,2001,2002,2003 Guido Draheim * All rights reserved, * usage allowed under the restrictions of the * Lesser GNU General Public License * or alternatively the restrictions * of the Mozilla Public License 1.1 * * if you see "unknown symbol" errors, check first that `-I ..` is part of * your compiler options - a special hint to VC/IDE users who tend to make up * their own workspace files. All includes look like #include <zzip|*.h>, so * you need to add an include path to the dir containing (!!) the ./zzip/ dir */ #ifndef _ZZIP_ZZIP_H /* zziplib.h */ #define _ZZIP_ZZIP_H #include <zzip/conf.h> #include <fcntl.h> #include <stddef.h> /* size_t and friends */ /* msvc6 has neither ssize_t (we assume "int") nor off_t (assume "long") */ #ifdef __cplusplus extern "C" { #endif /* the zzip_error_t is also used to pass back ZLIB errors... */ #define ZZIP_ERROR -4096 typedef enum { ZZIP_NO_ERROR = 0, /* no error, may be used if user sets it. */ ZZIP_OUTOFMEM = ZZIP_ERROR-20, /* out of memory */ ZZIP_DIR_OPEN = ZZIP_ERROR-21, /* failed to open zipfile, see errno for details */ ZZIP_DIR_STAT = ZZIP_ERROR-22, /* failed to fstat zipfile, see errno for details */ ZZIP_DIR_SEEK = ZZIP_ERROR-23, /* failed to lseek zipfile, see errno for details */ ZZIP_DIR_READ = ZZIP_ERROR-24, /* failed to read zipfile, see errno for details */ ZZIP_DIR_TOO_SHORT = ZZIP_ERROR-25, ZZIP_DIR_EDH_MISSING = ZZIP_ERROR-26, ZZIP_DIRSIZE = ZZIP_ERROR-27, ZZIP_ENOENT = ZZIP_ERROR-28, ZZIP_UNSUPP_COMPR = ZZIP_ERROR-29, ZZIP_CORRUPTED = ZZIP_ERROR-31, ZZIP_UNDEF = ZZIP_ERROR-32, } zzip_error_t; /* * zzip_open flags. */ #define ZZIP_CASEINSENSITIVE O_APPEND /* do not use anymore. use CASLESS */ #define ZZIP_IGNOREPATH O_TRUNC /* do not use anymore. use NOPATHS */ #define ZZIP_EXTRAFLAGS (ZZIP_CASEINSENSITIVE|ZZIP_IGNOREPATH) /* zzip_open_ext_io o_modes flags : new style. use these from now on! */ #define ZZIP_CASELESS (1<<12) /* ignore filename case inside zips */ #define ZZIP_NOPATHS (1<<13) /* ignore subdir paths, just filename*/ #define ZZIP_PREFERZIP (1<<14) /* try first zipped file, then real*/ #define ZZIP_ONLYZIP (1<<16) /* try _only_ zipped file, skip real*/ #define ZZIP_FACTORY (1<<17) /* old file handle is not closed */ #define ZZIP_ALLOWREAL (1<<18) /* real files use default_io (magic) */ /* * zzip largefile renames */ #ifdef ZZIP_LARGEFILE_RENAME #define zzip_telldir zzip_telldir64 #define zzip_seekdir zzip_seekdir64 #endif /* * zzip typedefs */ /* zzip_strings_t ext[] = { ".zip", ".jar", ".pk3", 0 } */ typedef char _zzip_const * _zzip_const zzip_strings_t; typedef char _zzip_const zzip_char_t; typedef _zzip_off_t zzip_off_t; typedef _zzip_size_t zzip_size_t; typedef _zzip_ssize_t zzip_ssize_t; typedef struct zzip_dir ZZIP_DIR; typedef struct zzip_file ZZIP_FILE; typedef struct zzip_dirent ZZIP_DIRENT; typedef struct zzip_dirent ZZIP_STAT; struct zzip_dirent { int d_compr; /* compression method */ int d_csize; /* compressed size */ int st_size; /* file size / decompressed size */ char * d_name; /* file name / strdupped name */ }; /* * Getting error strings * zzip/err.c */ _zzip_export /* error in _opendir : */ zzip_char_t* zzip_strerror(int errcode); _zzip_export /* error in other functions : */ zzip_char_t* zzip_strerror_of(ZZIP_DIR * dir); _zzip_export /* error mapped to errno.h defines : */ int zzip_errno(int errcode); /* * Functions to grab information from ZZIP_DIR/ZZIP_FILE structure * (if ever needed) * zzip/info.c */ _zzip_export int zzip_error(ZZIP_DIR * dir); _zzip_export void zzip_seterror(ZZIP_DIR * dir, int errcode); _zzip_export zzip_char_t* zzip_compr_str(int compr); _zzip_export ZZIP_DIR * zzip_dirhandle(ZZIP_FILE * fp); _zzip_export int zzip_dirfd(ZZIP_DIR * dir); _zzip_export int zzip_dir_real(ZZIP_DIR * dir); _zzip_export int zzip_file_real(ZZIP_FILE * fp); _zzip_export void* zzip_realdir(ZZIP_DIR * dir); _zzip_export int zzip_realfd(ZZIP_FILE * fp); /* * zip handle management * zzip/zip.c */ _zzip_export ZZIP_DIR * zzip_dir_alloc(zzip_strings_t* fileext); _zzip_export int zzip_dir_free(ZZIP_DIR *); /* * Opening/closing a zip archive * zzip-zip.c */ _zzip_export ZZIP_DIR * zzip_dir_fdopen(int fd, zzip_error_t * errcode_p); _zzip_export ZZIP_DIR * zzip_dir_open(zzip_char_t* filename, zzip_error_t * errcode_p); _zzip_export int zzip_dir_close(ZZIP_DIR * dir); _zzip_export int zzip_dir_read(ZZIP_DIR * dir, ZZIP_DIRENT * dirent); /* * Scanning files in zip archive * zzip/dir.c * zzip/zip.c */ _zzip_export ZZIP_DIR * zzip_opendir(zzip_char_t* filename); _zzip_export int zzip_closedir(ZZIP_DIR * dir); _zzip_export ZZIP_DIRENT * zzip_readdir(ZZIP_DIR * dir); _zzip_export void zzip_rewinddir(ZZIP_DIR * dir); _zzip_export zzip_off_t zzip_telldir(ZZIP_DIR * dir); _zzip_export void zzip_seekdir(ZZIP_DIR * dir, zzip_off_t offset); /* * 'opening', 'closing' and reading invidual files in zip archive. * zzip/file.c */ _zzip_export ZZIP_FILE * zzip_file_open(ZZIP_DIR * dir, zzip_char_t* name, int modes); _zzip_export int zzip_file_close(ZZIP_FILE * fp); _zzip_export zzip_ssize_t zzip_file_read(ZZIP_FILE * fp, char* buf, zzip_size_t len); _zzip_export ZZIP_FILE * zzip_open(zzip_char_t* name, int flags); _zzip_export int zzip_close(ZZIP_FILE * fp); _zzip_export zzip_ssize_t zzip_read(ZZIP_FILE * fp, char * buf, zzip_size_t len); /* * the stdc variant to open/read/close files. - Take note of the freopen() * call as it may reuse an existing preparsed copy of a zip central directory */ _zzip_export ZZIP_FILE* zzip_freopen(zzip_char_t* name, zzip_char_t* mode, ZZIP_FILE*); _zzip_export ZZIP_FILE* zzip_fopen(zzip_char_t* name, zzip_char_t* mode); _zzip_export zzip_size_t zzip_fread(void *ptr, zzip_size_t size, zzip_size_t nmemb, ZZIP_FILE * file); _zzip_export int zzip_fclose(ZZIP_FILE * fp); /* * seek and tell functions */ _zzip_export int zzip_rewind(ZZIP_FILE *fp); _zzip_export zzip_off_t zzip_seek(ZZIP_FILE * fp, zzip_off_t offset, int whence); _zzip_export zzip_off_t zzip_tell(ZZIP_FILE * fp); /* * reading info of a single file * zzip/stat.c */ _zzip_export int zzip_dir_stat(ZZIP_DIR * dir, zzip_char_t* name, ZZIP_STAT * zs, int flags); #ifdef ZZIP_LARGEFILE_RENAME #define zzip_open_shared_io zzip_open_shared_io64 #define zzip_open_ext_io zzip_open_ext_io64 #define zzip_opendir_ext_io zzip_opendir_ext_io64 #define zzip_dir_open_ext_io zzip_dir_open_ext_io64 #define zzip_plugin_io_t zzip_plugin_io64_t #endif /* * all ext_io functions can be called with a default of ext/io == zero/zero * which will default to a ".zip" extension and posix io of the system. */ typedef union _zzip_plugin_io _zzip_const * zzip_plugin_io_t; _zzip_export ZZIP_FILE * zzip_open_shared_io(ZZIP_FILE* stream, zzip_char_t* name, int o_flags, int o_modes, zzip_strings_t* ext, zzip_plugin_io_t io); _zzip_export ZZIP_FILE * zzip_open_ext_io(zzip_char_t* name, int o_flags, int o_modes, zzip_strings_t* ext, zzip_plugin_io_t io); _zzip_export ZZIP_DIR * zzip_opendir_ext_io(zzip_char_t* name, int o_modes, zzip_strings_t* ext, zzip_plugin_io_t io); _zzip_export ZZIP_FILE * zzip_file_open_ext_io(ZZIP_DIR * dir, zzip_char_t* name, int flags, zzip_strings_t* ext, zzip_plugin_io_t io); _zzip_export ZZIP_DIR * zzip_dir_open_ext_io(zzip_char_t* filename, zzip_error_t* errcode_p, zzip_strings_t* ext, zzip_plugin_io_t io); #if defined _ZZIP_WRITE_SOURCE /* ........................................................................ * write support is not yet implemented * zzip/write.c */ #define ZZIP_NO_CREAT 1 ZZIP_DIR* zzip_dir_creat_ext_io(zzip_char_t* name, int o_mode, zzip_strings_t* ext, zzip_plugin_io_t io); ZZIP_DIR* zzip_dir_creat(zzip_char_t* name, int o_mode); int zzip_file_mkdir(ZZIP_DIR* dir, zzip_char_t* name, int o_mode); ZZIP_FILE* zzip_file_creat(ZZIP_DIR* dir, zzip_char_t* name, int o_mode); zzip_ssize_t zzip_file_write(ZZIP_FILE* file, const void* ptr, zzip_size_t len); ZZIP_DIR* zzip_createdir(zzip_char_t* name, int o_mode); zzip_ssize_t zzip_write(ZZIP_FILE* file, const void* ptr, zzip_size_t len); zzip_size_t zzip_fwrite(const void* ptr, zzip_size_t len, zzip_size_t multiply, ZZIP_FILE* file); #ifndef zzip_savefile #define zzip_savefile 0 #define zzip_savefile_is_null #endif #ifdef _ZZIP_NO_INLINE #define zzip_mkdir(_name_,_mode_) \ zzip_file_mkdir((zzip_savefile),(_name_),(_mode_)) #define zzip_creat(_name_,_mode_) \ zzip_file_creat((zzip_savefile),(_name_),(_mode_)) #define zzip_sync() \ { zzip_closedir((zzip_savefile)); (zzip_savefile) = 0; } #define zzip_start(_name_,_mode_,_ext_) \ { if ((zzip_savefile)) zzip_closedir((zzip_savefile)); zzip_savefile = zzip_dir_creat(_name_, _mode_,_ext_); } #else _zzip_inline static int zzip_mkdir(zzip_char_t* name, int o_mode) { return zzip_file_mkdir(zzip_savefile, name, o_mode); } _zzip_inline static ZZIP_FILE* zzip_creat(zzip_char_t* name, int o_mode) { return zzip_file_creat(zzip_savefile, name, o_mode); } #ifndef zzip_savefile_is_null _zzip_inline static void zzip_sync(void) { zzip_closedir(zzip_savefile); zzip_savefile = 0; } _zzip_inline static void zzip_mkfifo(zzip_char_t* name, int o_mode) { if ((zzip_savefile)) zzip_closedir (zzip_savefile); zzip_savefile = zzip_createdir(_name_,_mode_); } #else _zzip_inline static void zzip_sync(void) {} _zzip_inline static void zzip_mkfifo(zzip_char_t* name, int o_mode) {} #endif #endif /* _ZZIP_NO_INLINE */ #endif /* _ZZIP_WRITE_SOURCE */ #ifdef __cplusplus }; #endif #endif /* _ZZIPLIB_H */ /* * Local variables: * c-file-style: "stroustrup" * End: */